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Deviant 75421 - 5/8" Transmission Cooler Repair Lines For 2015-16 GM Duramax equipped Pickups
Deviant 75421 - 5/8" Transmission Cooler Repair Lines For 2015-16GM Duramax equipped Pickups

Our Price: $300.00

Product Code: 75421

Deviant Race Parts LEAK FREE Transmission Repair lines for 2015-16 GM 6.6L Duramax equipped Pickups with the Allison 1000 Transmission.

GM's factory transmission lines leave something to be desired. DRP saw a need to build a high quality, LIFETIME WARRANTED, part that completely replace the OEM lines. With thousands sold, we can say we've solved the problem.


  • 1500psi rated Industrial Strength Hydraulic Lines
  • All necessary fittings and adapters to bolt up to factory locations
  • Full, step by step, instructions
  • 2 out of 5 wrenches (1 wrench being easiest)

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